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Finding the Fourth Proportional to 3,978,697.60, 5,964,109.80 and 1,955,285.20

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Solution

The fourth proportional to 3,978,697.60, 5,964,109.80 and 1,955,285.20 is: 2,930,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,978,697.60 : 5,964,109.80 = 1,955,285.20 : x
  2. Step 2: Convert to fraction form
    3,978,697.60/5,964,109.80 = 1,955,285.20/x
  3. Step 3: Cross multiply
    3,978,697.60x = 5,964,109.80 × 1,955,285.20
  4. Step 4: Simplify right side
    3,978,697.60x = 11,661,535,623,114.96
  5. Step 5: Solve for x
    x = 11,661,535,623,114.96/3,978,697.60
  6. Step 6: Final answer
    x = 2,930,993.20

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Why These Related Problems?

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